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Quaternary ammonium analog of ethidium; an intercalating dye with a specific affinity to certain forms of DNA and, used as diiodide, to separate them in density gradients; also forms fluorescent complexes with cholinesterase which it inhibits.

Year introduced: 1991(1979)

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Tree Number(s): D03.633.300.633.700

MeSH Unique ID: D011419

Registry Number: 36015-30-2

Entry Terms:

  • Propidium Iodide
  • Iodide, Propidium
  • Propidium Diiodide
  • Diiodide, Propidium

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